The Windows Installer folder is a hidden system folder situated in C:\Windows\Installer. To see it, you have to go through Folder Options and uncheck the Hide protected operating system files option.
After your computer applies a Windows patch, the patch file along with other files related to the installation are cached in the hidden system folder C:\Windows ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback